/**
 * 
 */
package homework6;

/**
 * @author Nican
 * 
 */
public interface ISpreadSheet {
	/**
	 * Store the cell in the cellname
	 * @param cellname name of the cell
	 * @param expr how to achive the value
	 */
	void editContents(String cellname, IFormula expr);
	
	/**
	 * Retrives the integer value from the cell
	 * @param forcell name of the cell
	 * @return
	 */
	Integer lookupValue(String forcell);
}
